Jacquard.



PATBNTED APR. 12, 1904.

W. A. PARDOE.

JACQUARD.

z #sums-SHEET 1.

APPLIOATION FILED JULY zz, 190s.

N0 MODEL.

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No. 757,342. PATENTBD APB.. 12, 1904. w. A. PARDOB. JAGQUARD.

APPLICATION FILED JULY ZZ, 1903.

N0 MODEL. 2 SHEETS-SHEET 2.

UNITED STATES Patented April 12, 1901.

PATENT OEEICE.

JACQUARD.

SPECIFICATION forming part of Letters Patent No. 757,342, dated April12, 1904.

Application filed July 22, 1903. Serial No. 166,612. (No model.)

T 0 all whom it' may concer-7e: I

Be it known that I, WILLIAM ALFRED PAR- DoE,'a subject of the King ofGreat Britain and Ireland, residing at Batley Carr, Dewsbury, county ofYork, England, have invented new and useful Improvements in J acquards,of which the following is a specification.

This invention relates to improvements in jacquards for Brussels-carpetsquares or bordered-fabric-weaving looms and other looms and machines inwhich it is desirable to pass or run over backward or forward a certainnumber of cards without working from them; and the objects of theinvention are, first, to enable the operative without having to mountthe platform to cause the cylinder when at its outermost position toturn until the required card is facing the needles, when it will stopautomatically and the loom be ready to start weaving, and, secondly, toenable motive power to be employed for pulling over cards in weavingbordered fabrics. I attain these objects by the mechanism illustrated inthe annexed drawings, in which- Figure l is a perspective View of acarpetloom jacquard with the invention applied, the harness beingomitted for the sake of clearness. Fig. Q is a detached view, in sideelevation, of the parts constituting the novel mechanism; and Fig. 3 isa plan of the same,

' the `two latter figures being drawn to a larger scale. Eig. 4 is adetail.

For the purpose of the invention the jacquard-cylinder a has its aXis 7)extended at one end, and mounted thereon is a chain-wheel c, adapted tobe engaged with or disengaged from a driving-chain d. Said chain passesover a grooved pulley e, (hereinafter referred to,) and over achain-wheel f on a countershaft g, which also carries a belt-pulley 7L(or fast and loose pulleys) and is driven from the main shafting of thefactory. The pulley e v is carried by a lever t', pivoted to the frameat j and arranged at a suitable height above the cylinder a, and it isheld in a raised position by a spring lo, in which` position the chain dis out of engagement with the chain-wheel. To depress the lever r1, andso bring about the engagement of the chain with the chain-wheel e, andthereby drive the cylinder a, the said lever is connected by a wire orcord l (or other exible connection) to a hand-lever m, pivoted at m in abracket n, projecting from the loom-frame and in a convenient positionwithin reach of the operative. By depressing said hand-lever theengagement of the chain d with the toothed wheel c is effected. To keepthe hand-lever depressed, it is provided with a pin o, adapted to engagea shoulder p on the short arm of an elbow-lever q, which is pivoted atfrto the bracket n. To disengage the chain d by hand, the said short armof the elbow-- lever is prolonged and terminates in a trigger orfinger-piece s, by which the elbow-lever can be pushed backward and theshoulder p released from the pin 0, thereby leaving the handlever freeto be returned by the spring/v and the disengagementof the chain to beeffected. In order, however, that this disengagement may bedoneautomatically, any of the cards or their equivalent in the circle orchaplet t may each be vprovided with a wire or rod a, which projectsbeyond the edge of the card. and is adapted when said card has reachedthe cylinder to strike against and raise a lever o, pivoted to the frameat'w and havingits free end resting upon a grooved or plain disk z onthe cylinder-axis, said lever being bent and shaped, if necessary, so asto clear the lifting-board or any other element of the jacquard.' Thefree end of the lever o is connected by a wire or cord :c or otherlieXible connection to the long arim of the elbow-lever, the point ofconnection being adjustable along the arm, which for this purpose hasthree or more holes, so that, if necessary, the leverage may be altered.When the wire or rod a raises the lever o, the long arm of theelbow-lever q is raised, and the shoulder 79 on the other arm escapesfrom the pin 0 on the hand-lever, thus leaving' the spring free to actto return the hand-lever to the raised position and the chain to thedisengaged position. rlhe long arm of the elbow-lever g acts as acounterweight. and the downward movement of said arm is limited by itsresting upon a stop y on the frame.

The counter -shaft g may be arranged to carry a central fast and twooutside loose pulleys, having straight and crossed belts passing on tothe main driving-shaft, and by means of an ordinary clutch-and-forkarrangement the chain Z may be driven forward or backward.

Such an ,arrangement is shown in Fig. 4, in

Which is the fixed pulley, 71, the loose pulley, on which the straightbelt is shifted to stop the loom, and h2 is the loose pulley, having aclutch-hub to gear with the clutch-piece g when it is desired to driveby means of the crossed belt.

When making a border, the loom weaves as usual, the drivin g-chain dbeing disengaged, as in Fig. 1, and to prevent the border when finishedbeing repeated in the fabric the loom is stopped in the ordinary way,and remains so, with the card-cylinder forward or away from the needles.The operative then depresses the hand-lever m until the pin 0 engageswith the shoulder 0 on the elbow-lever q, as shown in Figs. 2 and 3,whereby the hand-lever is retained and the driving-chain kept inengagement with the chain-wheel c, thus driving the card -cylinder byvpower and running over those cards that are notrequired in the workuntil a card (in the proper. position of the circle or chaplet of cards)that has a wire or rod reaches the cylinder and acts upon the lever o,so eifecting the automatic disengagement of the chain and stopping ofthe cylinder, the mechanism having returned to the position shown inFig. l. The required card for working is then in position and weaving isresumed and continued until the next border is reached, when theoperation above described is repeated. In some cases-as, for instance,where the number of cards in the border greatly exceeds the number inthe body of the pattern--it might be desirable in running over the cardsto rotate the cylinder in the reverse direction. This can be effected bybringing the crossed belt on the counter-shaft g into action.

The term outermost position as employed in certain of the claimsdesignates the position lwhich the jacquard-cylinder a occupies when itis farthest from contact with the needles. At the commencement of eachweaving operation the cylinder is out, with the cards hanging over it,and at its first movement it goes in against the needles, pressing thecard which faces them against the needles. Then going out again andturning one face so as to put the next card opposite the needles it goesin to produce the next selection of harness determined by that card, andso on.

Having now described my invention, what I claim, and vdesire to secureby Letters Patent, is-

1. In a jacquard, the combination, with the cylinder, of means forturning said cylinder by power, when at its outermost position and whenthe loom is not weaving, and means for effecting the engagement, ordisengagement,

of the driving means with, or from, said cylinder.

2. In a jacquard, the combination, with the cylinder, of means forturning said cylinder by power, when at its outermost position and whenthe loom is not weaving, means for effecting the engagement, ordisengagement, of the driving means with, or from, said cylinder, andmeans for automatically stopping the cylinder. 3. In a jacquard, thecombination with the card-cylinder, of a chain-wheel mounted upon thecylinder-axis, a chain-wheel on the powershaft, a spring-,controlledlever pivoted to the frame, a pulley carried by said lever, a chainpassing over said pulley and over the chainwheel on the power-shaft, andmeans for keeping the chain temporarily engaged with the chain-wheel onthe cylinder-axis.

4. In a jacquard, the combination with the engaging and disengagingmechanism and with the driving mechanism, of a rod (or rods) secured tothe circle or chaplet of cards, a lever adapted to be actuated by saidrod (or rods) and connected with the hand-lever mechanism so as toautomatically effect the disengagement of the cylinder from thepower-shaft.

5. In a jacquard, the combination with the hand-lever of the engagingand disengaging mechanism, of an elbow-lever, a shoulder on the shortarm of said elbow-lever, means for -connecting the hand-lever with thechain-engaging mechanism, means for connecting the velbow-lever with theautomatic chain-disengaging mechanism, and a pin on the hand-leveradapted, when engaged with a shoulder on the elbow-lever, to retain thehand-lever in `the depressed position and thereby keep the cylinder`engaged with the driving-shaft.

6. In a jacquard, the combination with the card-cylinder, a chain-wheelmounted upon its axis, a chain-wheel on the power-shaft, aspringcontrolled lever pivoted to the jacquard-frame, an adjustablepulley carried by said lever, and a chain passing over said pulley andover the chain-wheel on the power-shaft, of a hand-lever, a flexibleconnection between said hand-lever and the spring-controlled lever, anelbow-lever acting in conjunction with the hand -lever for keeping lthislatter de pressed and the chain engaged with the chainwheel on thecylinder-axis, a releasing-lever actuated by rods on the cards orchaplet for automatically disengagingthe chain from the chain-wheel onthe cylinder-axis, and a iiexible connection between the releasing-leverand the elbow-lever.

In witness whereof I have hereunto signed my name in the presence of twosubscribing witnesses.

WILLIAM ALFRED PARDOE.

Witnesses:

W. STEvENsoN, EDWARD D. HEARN.

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